ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
Sir why in non skeletal electron multiply by 12 with no. Of valence electrons
Sir, Why are you subtracting SEP with minus one?
Sir why in non skeletal electron multiply by 12 with no. Of valence electrons
Sir, Why are you subtracting SEP with minus one?